David is ________animal fur, so he won’t visit anyone who has cats or dogs in the house.
Who says cats and dogs can’t well? My dog acts as the eyes of my blind cat.
She let the children ______ to play instead of staying at home all the time.
_____ the Internet is of great help, I don’t think it’s a good idea to spend too much time on it.
My uncle has given up _________. He looks very healthy now.
Whenever he meets difficulties, he always takes a positive _________ towards them.